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Factory workshop manuals
Yanmar Repair Manuals
- Instant PDF download
- OEM repair procedures
- Wiring diagrams & torque specs
Yanmar of Osaka has specialised in compact diesel engines since 1912, powering sailboats, tractors and machinery worldwide. This page offers Yanmar service and workshop manuals for marine diesels and agricultural and industrial engines, with full repair and maintenance detail for every engine family.
Yanmar began in 1912 when Magokichi Yamaoka opened an engine workshop in Osaka; the Yanmar trademark followed in 1921. The company helped pioneer small, practical diesel engines in the 1930s, at a time when diesels were generally large stationary or marine units, and compact diesels have remained its core business ever since. Today Yanmar remains an independent Japanese engine specialist with operations worldwide.
Yanmar engines are everywhere afloat and ashore. Marine families include the GM, QM, YM and JH series, from the single-cylinder 1GM10 to the 4JH four-cylinders that serve as yacht auxiliaries and small-craft main engines. The same engineering drives Yanmar tractors, compact excavators, generators and industrial power units across agriculture and construction. Its compact tractor lines remain popular on small farms and lifestyle properties.
The manuals here cover complete engine service: fuel-injection pump timing and testing, cylinder head and piston work, heat-exchanger and raw-water cooling service, gearbox and saildrive maintenance, electrical systems, wiring diagrams and winterisation, supported by torque tables and service interval charts matched to engine model and serial range. Cooling system flushing procedures are especially important for raw-water-cooled models.
Sailors maintaining an auxiliary, farmers servicing a tractor and plant operators running generators or excavators all depend on these documents. With a factory Yanmar manual, even a major overhaul becomes a sequence of well-documented steps. Compact size makes many jobs possible for a competent owner.
Yanmar Models
217 models-
Yanmar Inboard Engines
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Yanmar Marine Engine
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Yanmar LYA Series
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Yanmar 3YM20
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Yanmar YM Series
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Yanmar 2YM15
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Yanmar 3YM30
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Yanmar Tractors
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Yanmar SY Series
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Yanmar 6LY2A-STP
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Yanmar 6LYA-STP
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Yanmar LHA Series
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Yanmar 6LYA-STE
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Yanmar BY Series
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Yanmar 6LY2-STE
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Yanmar GM Series
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Yanmar YM Models
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Yanmar 6LYA-UTE
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Yanmar CXM Series
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Yanmar 1GM10(C)
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Yanmar YSE12
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Yanmar YSE8
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Yanmar 6CXM-GTE2
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Yanmar 4 BY 6 BY
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Yanmar 4 TNE Series
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Yanmar 4TNE98
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Yanmar LP Series
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Yanmar 2GM20(F)(C)
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Yanmar YSM Series
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Yanmar 4BY
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Yanmar 6BY
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Yanmar 4TNE94
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Yanmar 6CXM-GTE
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Yanmar YSE Series
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Yanmar 3GM30(F)(C)
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Yanmar HA Series
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Yanmar SKE Series
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Yanmar 6SY-STP2
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Yanmar 4LHA Series
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Yanmar 4TNE106T
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Yanmar SVE Series
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Yanmar 1GM10
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Yanmar IS Series
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Yanmar 6GH-UTE
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Yanmar GH Series
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Yanmar 3TNV
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Yanmar 4TNV
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Yanmar 2TD
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Yanmar 3TD
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Yanmar 4TD
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Yanmar TD Series
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Yanmar 3HM35(F)(C)
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Yanmar YSM
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Yanmar CX Series
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Yanmar 1GM
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Yanmar 2GM
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Yanmar Generators
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Yanmar Home and Garden
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Yanmar Power Equipment
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Yanmar TNE Series
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Yanmar 2 S Series
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Yanmar 2 TNE Series
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Yanmar 2 V Series
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Yanmar 2 TM 3 TM 4 TM
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Yanmar 3 TN 4 TN Series
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Yanmar 3 TNV Series
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Yanmar 3 TNE Series
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Yanmar 3 YM 20
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Yanmar 4 BY 2
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Yanmar 4 D 98 E
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Yanmar 4 MP 4
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Yanmar 4 TNV Series
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Yanmar 4LH Series
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Yanmar 6 HAL
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Yanmar 6 BY 2
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Yanmar 6CX
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Yanmar 8 LAA M DTE 12 LAA M DTE
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Yanmar 8 LAA DTE 12 LAA DTE
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BY Series
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ES Series
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Fuel Injection
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Inboard Engines Manuals
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ESC Series
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HA L Series
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Yanmar L 70
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L A Series
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L EE Series
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L V Series
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PHE Series
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PHME Series
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SKE Series
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QM GM HM Series
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SY Series
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T LE T H LE Series
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TF M Series
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TF Series
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Yanmar TNE 66 74 78 82 84 88 Series
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TN Series
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Yanmar TS 190
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TNM Series
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TNE Series
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TNV Series
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Yanmar TS 230
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Yanmar Engines Manuals
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TSC Series
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YDG Series
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Misc
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Other Yanmar
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Yanmar YSE 8 12
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Yanmar YSM YSMB YSMBG YSM 12 YSM 12 G
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YSE Series
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EA Models
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EF Models
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Other Yanmar
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EG Models
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KE Models
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YM Models
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Yanmar B05
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Yanmar B08
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Yanmar B10
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Yanmar B12 B12 1 B17 B17 1
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Yanmar B12 3
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Yanmar B12 P B12 PR B17 P B17 PR
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Yanmar B15
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Yanmar B17 2
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Yanmar B1U 1
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Yanmar B22 B22 P
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Yanmar B22 2
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Yanmar B22 2A
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Yanmar B22 P B22 C
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Yanmar B25V 1
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Yanmar B25 B25 1
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Yanmar B27 2
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Yanmar B27 2A
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Yanmar B27 P B27 C
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Yanmar B27 2B
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Yanmar B2U 1
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Yanmar B3
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Yanmar B30V 1
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Yanmar B32 B32 1
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Yanmar B37 2
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Yanmar B37 2A
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Yanmar B37 P B37 PR B37 C B37 CR
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Yanmar B37V 1
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Yanmar B4U 1
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Yanmar B50
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Yanmar B7
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Yanmar SV08
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Yanmar YB121U YB151U 2
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Yanmar YB201
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Yanmar YB221 B22
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Yanmar YB221U YB221UZ B22 B22 1
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Yanmar YB271 B27 B27 1
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Yanmar YB301 YB351
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Yanmar YB401 2
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Yanmar YB401W
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Other Yanmar
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Yanmar VIO Models
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Yanmar YB451 YB501
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Yanmar YB451 2 YB501 2
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C Models
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Other Yanmar
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B Series
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SV Series
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VIO Series
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Yanmar 3HM35F
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Yanmar 6N18
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BY Series
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CX Series
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CH Series
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CHE Series
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CXM Series
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D Series
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ESDE Series
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GM Series
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HA Series
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IS Series
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JH Series
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KM Series
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KMG Series
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LA Series
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LAK Series
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LHA Series
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LHE Series
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LM Series
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LP Series
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LPA Series
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LYA Series
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MGN Series
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QM Series
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S Series
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SKE Series
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SD Series
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SVE Series
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SY Series
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T Series
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TE Series
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YM Series
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YSE Series
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Other Yanmar
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Yanmar STE Models
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Yanmar STP Models
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Yanmar DTE Models
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Yanmar GTE Models
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Yanmar ZT Models
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YSM Series
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Other Yanmar
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Yanmar UTE Models
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YX Series
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Yanmar SD 20
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ZT Models
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YNG Series
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YEG Series
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YSG Series
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YTB Series
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YTG Series
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YTW Series
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vendorYanmarYanmar Diesel Engine 2S Service Repair Manual🏷️ Basic Information Identification Make: Yanmar Product Line: Diesel Engine Model: 2S Engine Type: Two-cylinder, inline, four-stroke diesel Production Years Covered: Refer to the manual for the exact production range; typically 1970s-1980s for the 2S series Manual Format: PDF download...
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vendorYanmarYanmar Marine Diesel Engine 1GM10(C) / 2GM20(F)(C) / 3GM30(F)(C) /...
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vendorYanmarYanmar Marine Diesel Engine 2T 3T Service Repair Manual
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vendorYanmarYanmar Marine Diesel Engine 4LHA-STE/STZE/STP/STZP 4LHA-DTE/DTZE/DTP/DTZP 4LHA-HTE/HTZE/HTP/HTZP Service Repair Manual🏷️ Basic Information Identification Make: Yanmar Model: 4LHA Series Marine Diesel Engines Model Variants: 4LHA-STE, 4LHA-STZE, 4LHA-STP, 4LHA-STZP, 4LHA-DTE, 4LHA-DTZE, 4LHA-DTP, 4LHA-DTZP, 4LHA-HTE, 4LHA-HTZE, 4LHA-HTP, 4LHA-HTZP Production Years: N/A - not specified for this model range 👋 Introduction Market Position...
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vendorYanmarYanmar Marine Diesel Engine 2TD 3TD 4TD Service Repair Manual🏷️ Basic Information Identification Make: Yanmar Model: Marine Diesel Engine 2TD, 3TD, 4TD series Model Variants: 2TD, 3TD, 4TD Production Years Covered: Per manual coverage - verify exact range for your serial number Engine Type: Water-cooled four-stroke marine diesel Application:...
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vendorYanmarYanmar Marine Diesel Engine CHE(3) Series Service Repair Manual🏷️ Basic Information Identification Make: Yanmar Model: CHE(3) Series Marine Diesel Engine Model Variant: CHE3 series, including common naturally aspirated and turbocharged marine configurations Production Years Covered: Refer to the specific model-year coverage stated in the manual Engine Type: Four-stroke,...
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vendorYanmarYanmar Marine Diesel Engine 2QM20(H) 3QM30(H) Service Repair Manual🏷️ Basic Information Identification Make: Yanmar Model: 2QM20(H), 3QM30(H) Model Variant: QM series marine diesel engines (H denotes heat exchanger cooled version) Production Years Covered: N/A - exact production span not specified in the manual Manual Coverage Scope Engine Family:...
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vendorYanmarYanmar Marine Diesel Engine 1GM10 2GM20 3GM30 3HM35 Service Repair...🏷️ Basic Information Identification Make: Yanmar Model Series: GM / HM Marine Diesel Models Covered: 1GM10, 2GM20, 3GM30, 3HM35 Model Variants: 1GM10, 2GM20, 3GM30, 3HM35 Production Years: Varies by model - see manual for specific engine serial number ranges Engine...
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vendorYanmarYanmar Marine Propulsion Engine 6HYM-ETE Service Repair Manual🏷️ Basic Information Identification Make: Yanmar Model: 6HYM-ETE Model Variant: 6HYM-ETE marine propulsion engine Production Years Covered: N/A - production years not specified for this manual variant Engine Type: 4-stroke, water-cooled marine diesel Configuration: Inline 6-cylinder Displacement: N/A - not...
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vendorYanmarYanmar Marine Diesel Engine 6GH-UTE Service Repair Manual🏷️ Basic Information Identification Make: Yanmar Model: 6GH-UTE Model Variant: 6GH-UTE marine diesel engine Engine Family: Yanmar GH series marine diesel Production Years Covered: N/A - exact production range not specified in this manual Application: Marine propulsion and auxiliary power...
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vendorYanmarYanmar Marine Diesel Engine 2-4LM(HT)YE Service Repair Manual🏷️ Basic Information Identification Make: Yanmar Model: 2LM, 3LM, 4LM, 2LMHT, 3LMHT, 4LMHT Model Variant: LM (naturally aspirated) and LMHT (turbocharged) Product Type: Marine diesel engine service repair manual Production Years Covered: N/A - not specified in this manual 👋...
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vendorYanmarYanmar Marine Diesel Engine 6GH-UTE 6GHA(M)-STE Service Repair Manual🏷️ Basic Information Vehicle Identification Make: Yanmar Model: 6GH-UTE / 6GHA(M)-STE Model Variant: 6GH-UTE, 6GHA-STE, 6GHA-MSTE Product Type: Marine diesel engine service and repair manual Production Years Covered: N/A - not specified for this model 👋 Introduction Market Position Target...
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vendorYanmarYanmar Marine Diesel Engine 8/12LAA(M)-DTE Service Repair Manual🏷️ Basic Information Model Identification Make: Yanmar Product Category: Marine Diesel Engine Model Range: 8LAA / 12LAA Series Model Variants: 8LAA-DTE, 12LAA-DTE, 8LAAM-DTE, 12LAAM-DTE Production Years Covered: As listed in the factory service manual for this model range Engine Type:...
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vendorYanmarYanmar YM336 YM336D Tractor Parts Manual🏷️ Basic Information Identification Make: Yanmar Model: YM336 / YM336D Vehicle Type: Tractor Product Name: Yanmar YM336 YM336D Tractor Parts Manual Download PDF 👋 Introduction Market Position Target Audience: Yanmar tractor owners, maintenance personnel, and repair technicians. Ideal for individuals...
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vendorYanmarYanmar Marine Diesel Engine CH Series Service Repair Manual🏷️ Basic Information Vehicle Identification Make: Yanmar Model: CH Series Marine Diesel Engine Model Variants: 2CH-ST, 2CH-STE, 3CH-ST, 3CH-STE Production Data Production Years: N/A - production range not specified in the available source material Application: Marine propulsion and auxiliary power...
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